Is it ok to do high intensity exercise like durance running or kickboxing after a recent diagnosis of a hemorrhagic cyst?

Need to know more. Like how big is it? Where is it located? Is it stable? You need that information to determine risk and consequences of rupture. Until that info is available i would refrain from any contact sports or endurance activity. Mild/moderate exercise on elliptical, yoga or. Pilates would be prudent in the meantime.